WO2016183149A1 - Système de forage en tunnel par acide, orientable en temps réel - Google Patents

Système de forage en tunnel par acide, orientable en temps réel Download PDF

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Publication number
WO2016183149A1
WO2016183149A1 PCT/US2016/031778 US2016031778W WO2016183149A1 WO 2016183149 A1 WO2016183149 A1 WO 2016183149A1 US 2016031778 W US2016031778 W US 2016031778W WO 2016183149 A1 WO2016183149 A1 WO 2016183149A1
Authority
WO
WIPO (PCT)
Prior art keywords
acid
wellbore
tool
acid tunneling
tunneling
Prior art date
Application number
PCT/US2016/031778
Other languages
English (en)
Inventor
Silviu LIVESCU
Thomas J. WATKINS
Original Assignee
Baker Hughes Incorporated
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to BR112017024197-8A priority Critical patent/BR112017024197B1/pt
Application filed by Baker Hughes Incorporated filed Critical Baker Hughes Incorporated
Priority to CA2985349A priority patent/CA2985349C/fr
Priority to AU2016261760A priority patent/AU2016261760B2/en
Priority to RU2017139572A priority patent/RU2679403C1/ru
Priority to PL16793410T priority patent/PL3294977T3/pl
Priority to CN201680026406.4A priority patent/CN107801408B/zh
Priority to NZ737693A priority patent/NZ737693A/en
Priority to EP16793410.8A priority patent/EP3294977B1/fr
Priority to MX2017014268A priority patent/MX2017014268A/es
Publication of WO2016183149A1 publication Critical patent/WO2016183149A1/fr
Priority to SA517390298A priority patent/SA517390298B1/ar
Priority to CONC2017/0011816A priority patent/CO2017011816A2/es
Priority to NO20171867A priority patent/NO20171867A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/20—Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/11—Perforators; Permeators
    • E21B43/114—Perforators using direct fluid action on the wall to be perforated, e.g. abrasive jets
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/28—Dissolving minerals other than hydrocarbons, e.g. by an alkaline or acid leaching agent
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/02—Determining slope or direction
    • E21B47/024—Determining slope or direction of devices in the borehole
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/06—Measuring temperature or pressure
    • E21B47/07—Temperature
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/065—Deflecting the direction of boreholes using oriented fluid jets
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling

Definitions

  • the invention relates generally to systems and methods for creating steerable lateral subterranean tunnels and for monitoring formation of tunnels in real-time at surface.
  • lateral tunnels that extend outwardly from a central wellbore, which is typically substantially vertically-oriented, but might also be horizontally-oriented or inclined.
  • a number of tools and techniques can be used to create lateral tunnels. Included among these tools and techniques are devices that inject acid into the wellbore and surrounding formation in order to dissolve rock. Devices of this type are used, for example, in the StimTunnelTM targeted acid placement service which is available commercially from Baker Hughes Incorporated of Houston, Texas.
  • These acid stimulation devices typically use a bottom hole assembly with a pivotable wand with a nozzle through which acid is dispensed under high pressure. The acid helps dissolve portions of the formation around the nozzle.
  • the wand is typically provided with one or more knuckle joints that help angle the nozzle in a desired direction.
  • This type of tool are discussed in U.S. Patent Publication No. 2008/0271925 ("Acid Tunneling Bottom Hole Assembly") by Misselbrook et al. [the '925 reference].
  • the '925 reference is herein incorporated by reference.
  • the present invention relates to devices and techniques for forming lateral tunnels from a subterranean wellbore using acid injection.
  • Devices and methods of the present invention allow greater control of the direction and length of lateral tunnels being created than has been possible with conventional systems.
  • Devices and methods of the present invention allow multiple lateral tunnels to be created radiating in different directions from a central, substantially vertical wellbore at a single depth or location along the wellbore.
  • Devices and methods of the present invention allow for real-time monitoring, at surface, of details relating to the creation of lateral tunnels.
  • an acid tunneling system includes an acid-dispensing bottom hole assembly secured to a running arrangement for running into a wellbore.
  • the bottom hole assembly includes a tunneling tool having a wand with a nozzle for injection of acid at desired locations to create lateral tunnels.
  • the bottom hole assembly is provided with one or more down hole parameter sensors.
  • the sensors are able to detect downhole parameters including pressure and temperature.
  • the sensors are capable of detecting fluid flow parameters, such as density and viscosity.
  • the sensors are retained within a sensor module that is incorporated into the bottom hole assembly.
  • a data/power cable is used to provide power to downhole components as well as a real-time data transmission system. Downhole parameters detected by the sensors is sent uphole by the cable to a controller.
  • the data/power cable is disposed within the central flowbore of the running string and may comprise a tube- wire type cable.
  • the acid tunneling system incorporates a casing collar locator ("CCL") which is useful for determining the position of the bottom hole assembly within a cased wellbore.
  • CCL casing collar locator
  • the casing collar locator provides an indication of the bottom hole assembly's depth or location within the wellbore.
  • Casing collar locator data is transmitted to the controller at surface using the data/power cable.
  • the acid tunneling system includes an inclinometer which can determine the angular departure from vertical of the bottom hole assembly at any given point within the wellbore. This data is transmitted to the controller at surface. Together with data from the casing collar locator, if used, the inclinometer can be used to locate the bottom hole assembly at a particular desired location in the wellbore.
  • an indexing tool is incorporated into the bottom hole assembly and is useful to rotate the tunneling tool portion of the bottom hole assembly within the wellbore.
  • the indexing tool can rotate the tunneling tool up to 180 degrees in either radial direction, allowing the tunneling tool to form lateral tunnels in any radial direction outwardly from the central wellbore.
  • a pulsating tool such as a lower frequency EasyReach extended reach tool, is connected between the tunneling tool and upper portions of the bottom hole assembly.
  • the pulsating tool creates pressure waves that are transmitted to the tunneling tool and, in response to each pulse, the wand and nozzle of the tunneling tool are flexed radially outwardly to permit acid to be dispensed toward the surrounding formation.
  • the pulsating tool is designed to provide pressure waves having a p re-set pressure profile for bending the tunneling too! in a prescribed manner to form enlarged diameter lateral tunnels.
  • the pulsating tool is designed to provide pressure pulses or waves which will activate flexure or bending of the tunneling tool in a periodic manner.
  • radial flexure of the tunneling tool occurs when the pulse is applied (pressure wave increasing) and the tool unflexes when the pulse is stopped (pressure wave decreasing). This flexing and unflexing will alternatively bend and straighten the - tunneling tool so that wider tunnels are created.
  • the inventors have determined that creating wider tunnels will advantageously reduce friction between the bottom hole assembly and the formation rock.
  • the acid tunneling system of the present invention can be operated to form lateral tunnels which extends outwardly from the central wellbore into which the acid tunneling system is run.
  • the acid tunneling system is run into a wellbore down to a formation into which it is desired to create lateral tunnels.
  • the approximate location of the bottom hole assembly within the wellbore is determined using a data from a casing collar locator, inclinometer, sensors and/or by other means known in the art. Acid is flowed down through the flowbore of the running string, and the fluid pressure of the acid actuates the pulsating tool.
  • the pulsating tool actuates the tunneling tool to flex and unflex as acid is injected into the wellbore and creates lateral tunnels.
  • the pulsating tool is also instrumental in creating lateral tunnels having larger diameters and which provide less frictional resistance with the tunneling tool, thereby facilitating the tunneling process.
  • the acid tunneling system of the present invention is steerable since it can be used to create tunnels in particular directions and at particular depths or locations in the wellbore.
  • the acid tunneling system is steered by raising and lowering the running string within the wellbore based upon data provided by a casing collar locator or sensors.
  • the tunneling tool can be radially oriented by the indexing tool to direct the nozzle of the tunneling tool in a particular radial direction.
  • a steerable acid tunneling system is used in conjunction with a milling tool to form one or more lateral tunnels from a cased wellbore.
  • a milling tool is first run into the wellbore and cuts one or more windows in the wellbore casing at locations wherein it is desired to create lateral tunnels using acid tunneling. Thereafter, the acid tunneling system is run into the wellbore and the acid tunneling tool is steered to form one or more lateral tunnels through the one or more lateral windows.
  • Figure 1 is a side, cross-sectional view of an exemplary wellbore containing an acid tunneling system in accordance with the present invention.
  • Figure 2 is a side, cross-sectional view of a section of running string used with the acid tunneling system of Figure 1 .
  • Figure 3 is a side, cross-sectional view of the wellbore and acid tunneling system of Figure 1 , now with the acid tunneling tool having been flexed to engage the wellbore wall.
  • Figure 4 is a side, cross-sectional view of the wellbore and acid tunneling system of Figures 1 and 3, now with the acid tunneling tool creating a lateral tunnel in the wellbore wall.
  • Figure 5 is a side, cross-sectional view of the wellbore and acid tunneling system of Figures 1 , 3 and 4, now with the acid tunneling tool having been rotated to create a second lateral tunnel.
  • Figure 6 is a side, cross-sectional view of the acid tunneling system forming an enlarged diameter lateral tunnel.
  • Figure 7 is a flow diagram depicting steps in an exemplary acid tunneling system steering operation.
  • Figure 8 is a side, cross-sectional view of an exemplary wellbore depicting a milling tool cutting a window in a cased wellbore.
  • Figure 9 is a side, cross-sectional view of the wellbore shown in Figure 8 now with an acid tunneling system disposed within the wellbore to create a lateral tunnel.
  • Figure 1 illustrates an exemplary wellbore 10 that has been drilled through the earth 12 from the surface 14 down to a hydrocarbon-bearing formation 16 into which it is desired to create lateral tunnels.
  • the wellbore 10 has a portion that is lined with metallic casing 17, of a type known in the art.
  • An acid tunneling system, generally indicated at 18 is disposed within the wellbore 10 from the surface 14.
  • the acid tunneling system 18 includes a running string 20, which is preferably coiled tubing of a type known in the art.
  • a central axial flowbore 22 is defined along the length of the running string 20.
  • a cable 24 for transmission of electrical power and/or data extends along the length of the flowbore 22.
  • the cable 24 is tube-wire.
  • Tube-wire is a tube that contains an insulated cable that is used to provide electrical power and/or data to a bottom hole assembly or to transmit data from the bottom hole assembly to the surface 14.
  • Tube-wire is available commercially from manufacturers such as Canada Tech Corporation of Calgary, Canada.
  • Telecoil is coiled tubing which incorporates tube-wire that can transmit power and data.
  • a controller 26 receives data from the cable 24.
  • the controller 26 is preferably a programmable data processor having suitable amounts of memory and storage for processing data received from a bottom hole assembly as well as means for displaying such data.
  • the controller 26 comprises a computer.
  • the controller 26 is programmed with a suitable geosteering software which is capable of using data collected from downhole sensors and providing guidance to an operator in real time to permit on the fly changes or the position and orientation of the tunneling tool 40.
  • Suitable software for use by the controller 26 includes Reservoir Navigation Services (RNS) software which is available commercially from Baker Hughes Incorporated of Houston, Texas.
  • RNS Reservoir Navigation Services
  • the acid tunneling system 18 includes a bottom hole assembly 28 that is secured to the running string 20 by a coiled tubing connector 30.
  • the bottom hole assembly 28 is designed for the injection of acid and preferably includes a sensor module 32 and a casing collar locator 34.
  • the bottom hole assembly 28 also includes an indexing tool 36 and a pulsating tool 38.
  • the bottom hole assembly 28 includes an acid tunneling tool 40.
  • the acid tunneling tool 40 is constructed and operates in the same manner as the acid tunneling bottom hole assembly 100 described in U.S. Patent Publication 2008/0271925 by Misselbrook et al.
  • the acid tunneling tool 40 includes a wand 42 and intermediate sub 44 which are affixed to the pulsating tool 38 by articulable knuckle joint 46.
  • a second articulable knuckle joint 48 interconnects the wand 42 and the intermediate sub 44 together.
  • the wand 42 has a nozzle 50 at its distal end.
  • a suitable device for use as the acid tunneling tool 40 is the StimTunnelTM targeted acid placement tool which is available commercially from Baker Hughes Incorporated of Houston, Texas.
  • the indexing tool 36 is disposed axially between the hydraulic disconnect 34 and the pulsating tool 38.
  • a suitable device for use as the indexing tool 36 is the coiled tubing Hi-Torque Indexing Tool which is available commercially from National Oilwell Varco.
  • the indexing tool 36 is capable of rotating the pulsating tool 38 and acid tunneling tool 40 with respect to the running string 20 within the wellbore 10.
  • the bottom hole assembly 28 also includes a pulsating tool 38.
  • a suitable device for use as the pulsating tool 38 is the EasyReachTM fluid hammer tool .which is available commercially from Baker Hughes Incorporated of Houston, Texas.
  • a fluid pulsing tool of this type is described in greater detail in U.S. Patent Publication No. 2012/0312156 by Standen et al. entitled "Fluidic Impulse Generator.”
  • fluid such as acid
  • the pulsating tool 38 toward the acid tunneling tool 40.
  • the pulsating tool 38 creates pressure pulses within the fluid flowing to the acid tunneling tool 40, and these pulses will cause the wand 42 and intermediate sub 44 to be flexed or bent upon the first and second knuckle joints 46, 48.
  • the tunneling tool 40 will flex (flexed position shown in Fig. 3) upon receipt of a pulse and unflex (unflexed position shown in Fig. 1 ). Flexing of the tunneling tool 40 allows acid to be injected at an angle toward the wellbore 10 wall, as illustrated by Figures 3-4. Lateral tunnel 52 is shown in Figure 4 being created by the injection of acid from nozzle 50.
  • Figure 6 illustrates the use of the pulsating tool 38 to help in creating an enlarged diameter lateral tunnel 52.
  • the pulsating tool 38 generates a series of fluid pulses transmitted toward the tunneling tool 40.
  • the wand 42 and intermediate sub 44 flex to the first position shown by the solid lines in Figure 6.
  • the wand 42 and intermediate sub 44 unflex to the second position indicated by the broken lines in Figure 6.
  • the surface area of the formation 16 over which acid is distributed in increased, thereby enlarging the lateral tunnel.
  • the lateral tunnel 52 will have acid distributed onto an upper portion 54 and a lower portion 56.
  • Periodic flexing and unflexing, together with injection of acid, will create a lateral tunnel 52 having an enlarged diameter or wider portions as compared to acid tunneling tools which do not incorporate a pulsating tool.
  • the enlargement of the lateral tunnel will result in reduced friction between the tunneling tool 40 and the formation 16 which will aid the process of forming the lateral tunnel 52.
  • an inclinometer 58 is incorporated into the tunneling tool 40.
  • the inclinometer 58 is capable of determining the angular inclination of the tunneling tool 40, or portions thereof, with respect to a vertical axis or relative to the inclination or angle of the wellbore 10.
  • the inclinometer 58 is electrically connected to the data/power cable 24 so that inclinometer data is sent to the controller 26 at surface 14 in real time.
  • the sensor module 32 and casing collar locator 34 are electrically connected to the data/power cable 24 so that data obtained by them is provided to the controller 26 in real time.
  • the sensor module 32 includes sensors that are capable of detecting at least one downhole parameter.
  • the sensor module 32 includes sensors that are capable of detecting a variety of downhole parameters.
  • Exemplary downhole parameters that are sensed by the sensor module 32 include temperature, pressure, gamma, acoustics and pH (acidity/alkalinity). These parameters can be used by the controller 26 or a user to identify the location and orientation of the bottom hole assembly 28 within the wellbore 10 in real time. For example, detected wellbore pressure or temperature can be correlated to a particular depth within the wellbore 10.
  • real time bulk and azimuthal gamma measurements provided to the controller 26 from the sensor module 32 are used by the controller 26 in a manner similar to geosteering drilling techniques for determining in real time if the lateral tunnel 52 being formed is being created in the desired direction from the wellbore 10.
  • sensed acoustics data is provided to the controller 26 from the sensor module 32 are used by the controller 26 for the same purpose.
  • a pH sensor would be useful to provide information to the controller 26 which will help determine if acid is being spent effectively (i.e., reacting with formation rock) in forming lateral tunnel 52.
  • a user can, in response, adjust acid volume, pumping rate, temperature and/or pressure.
  • the controller 26 will provide a user with the information needed to steer the tunneling tool 40 in real time in response to information provided to the controller 26 by the sensor module 32, inclinometer 58 and casing collar locator 34 used with the bottom hole assembly 28.
  • the casing collar locator 34 is capable of providing location data as a result of detection of axial spacing from a casing collar (i.e., connecting collars used with the cased portion 17 of the wellbore 10.
  • data from the casing collar locator 34 is provided to the controller in real time via data/power cable 24.
  • a user can steer the bottom hole assembly 28 in order to create lateral tunnels at desired locations and in desired directions.
  • the tunneling tool 40 has been rotated in the wellbore 10 from the creation of first lateral tunnel 52 so that a second lateral tunnel 60 is being created by acid from the nozzle 50.
  • the tunneling tool 40 has been rotated by the indexing tool 36 within the wellbore 10.
  • the indexing tool 36 is capable of rotating the tunneling tool 40 up to 180 degrees in either radial direction within the wellbore 10, thereby providing the ability to orient the nozzle 50 of the tunneling tool 40 in any radial direction within the wellbore 10.
  • Such real-time steering of the tunneling tool 40 can also be used to guide and orient the nozzle 50 of the tunneling tool 40 initially for the creation of lateral tunnel 52.
  • the invention provides systems and methods for steering a tunneling tool 40 in order to create lateral tunnels, such as tunnels 52, 60.
  • data from down hole sensors and devices is transmitted to the surface in real time and, in response thereto, the tunneling tool 40 is moved axially within the wellbore 10 and/or angularly rotated within the wellbore 10 to steer and orient the nozzle 50 of that acid is injected in a desired direction for creation of one or more lateral tunnels.
  • Figure 7 provides an exemplary flow diagram depicting steps in an exemplary operation to steer the tunneling tool 40 to create lateral tunnels.
  • step 70 the bottom hole assembly 28 is run into wellbore 10 on running string 20 to a first desired location within the wellbore 10.
  • acid is flowed to the bottom hole assembly 28 where the pulsating tool 38 is activated to flex and unflex the tunneling too! 40 as described above. Acid creates a first lateral tunnel at a first location within the wellbore 10.
  • step 74 data from sensor module 32, inclinometer 58, and casing collar locator 34 is transmitted to controller 26. It is noted that step 74 occurs during each of the steps 70 and 72.
  • step 76 the tunneling tool 40 is steered to orient the nozzle 50 to create a second lateral tunnel at a second location. A user steers the tunneling too! 40 in response to and based upon real-time downhole parameter data collected by the controller 26.
  • the bottom hole assembly 28 may be moved axially within the wellbore 10.
  • the indexing tool 36 can steer the tunneling tool 40 by rotating it within the wellbore 0.
  • step 78 the tunneling tool 40 creates a second lateral tunnel in a second location within the wellbore 10.
  • acid is flowed to the bottom hole assembly 28.
  • the pulsating tool 38 flexes the tunneling tool 40 and directs the nozzle 50 radially outwardly so that a second lateral tunnel may be formed.
  • Figures 8-9 depict an embodiment wherein an acid tunneling system is used to create one or more lateral tunnels from within a wellbore 90 which is lined with metallic casing 92.
  • Figure 8 illustrates a window mill 94 having been run into the wellbore 90 on running string 96.
  • a whipstock 98 has been placed within the wellbore 90 deflects the mill 94 so that a window 100 is cut into the casing 92.
  • the window 100 is cut at a location within the wellbore 90 wherein it is desired to create a lateral tunnel. Although only a single window 100 is shown being cut, it should be understood that more than one window may be cut, allowing lateral tunnels to be created at multiple locations from wellbore 90.
  • the mill 94 and whipstock 98 are removed from the wellbore 90. Thereafter, an acid tunneling system 18 is disposed into the wellbore 90 ( Figure 9).
  • the tunneling tool 40 of the acid tunneling system 18 is then steered, using the techniques described previously, to direct the nozzle 50 of the tunneling tool 40 toward the window 100 and surrounding formation 16.
  • Steering in this instance will preferably utilize at least data provided to the controller 26 by the casing collar locator 34 in order to assist in properly locating the tunneling tool 40 at the same depth or location in the wellbore 90 as the window 100. Data from the inclinometer 58 is useful for directing the nozzle 50 through the window 100.
  • the tunneling tool 40 is steered to each of them using the techniques described previously. At each location, the acid tunneling tool is used to create a lateral tunnel through the window, such as window 100.

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geophysics (AREA)
  • Remote Sensing (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Fertilizing (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)

Abstract

Cette invention concerne un système de forage en tunnel par acide pour former des tunnels latéraux à partir d'un puits de forage central. Ledit système de forage en tunnel par acide comprend outil de forage en tunnel par acide comprenant une buse d'injection d'acide qui peut être dirigée et orientée en réponse à des paramètres de fond de puits qui sont détectés et envoyés en surface en temps réel.
PCT/US2016/031778 2015-05-13 2016-05-11 Système de forage en tunnel par acide, orientable en temps réel WO2016183149A1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
CN201680026406.4A CN107801408B (zh) 2015-05-13 2016-05-11 可实时导向的酸法穿隧系统
CA2985349A CA2985349C (fr) 2015-05-13 2016-05-11 Systeme de forage en tunnel par acide, orientable en temps reel
AU2016261760A AU2016261760B2 (en) 2015-05-13 2016-05-11 Real-time steerable acid tunneling system
RU2017139572A RU2679403C1 (ru) 2015-05-13 2016-05-11 Управляемая в режиме реального времени система кислотной проходки туннелей
PL16793410T PL3294977T3 (pl) 2015-05-13 2016-05-11 Układ sterowanego w czasie rzeczywistym tunelowania kwasem
BR112017024197-8A BR112017024197B1 (pt) 2015-05-13 2016-05-11 Sistema dirigível de tunelamento de ácido em tempo real e método para dirigir o sistema
NZ737693A NZ737693A (en) 2015-05-13 2016-05-11 Real-time steerable acid tunneling system
EP16793410.8A EP3294977B1 (fr) 2015-05-13 2016-05-11 Système de forage en tunnel par acide, orientable en temps réel
MX2017014268A MX2017014268A (es) 2015-05-13 2016-05-11 Sistema direccionable de creacion de tuneles mediante acido en tiempo real.
SA517390298A SA517390298B1 (ar) 2015-05-13 2017-11-06 نظام إنشاء أنفاق بحمض قابل للتوجيه في الزمن الفعلي
CONC2017/0011816A CO2017011816A2 (es) 2015-05-13 2017-11-21 Sistema direccionable de creación de túneles mediante ácido en tiempo real
NO20171867A NO20171867A1 (en) 2015-05-13 2017-11-22 Real-time steerable acid tunneling system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US14/710,926 US9850714B2 (en) 2015-05-13 2015-05-13 Real time steerable acid tunneling system
US14/710,926 2015-05-13

Publications (1)

Publication Number Publication Date
WO2016183149A1 true WO2016183149A1 (fr) 2016-11-17

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CN107801408A (zh) 2018-03-13
EP3294977A4 (fr) 2019-01-02
MX2017014268A (es) 2018-04-20
NO20171867A1 (en) 2017-11-22
BR112017024197A2 (pt) 2018-07-17
PL3294977T3 (pl) 2020-10-19
EP3294977A1 (fr) 2018-03-21
NZ737693A (en) 2019-03-29
EP3294977B1 (fr) 2020-04-29
US9850714B2 (en) 2017-12-26
CN107801408B (zh) 2020-07-14
AU2016261760A1 (en) 2017-12-14
BR112017024197B1 (pt) 2022-08-23
HUE049919T2 (hu) 2020-11-30
AU2016261760B2 (en) 2019-01-17
US20160333640A1 (en) 2016-11-17
SA517390298B1 (ar) 2021-09-16
RU2679403C1 (ru) 2019-02-08
CA2985349A1 (fr) 2016-11-17
CO2017011816A2 (es) 2018-02-09
CA2985349C (fr) 2020-09-15

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